Discuss your opinion about the usefulness of joining any university student association in many free online forums. Do this frequently especially if you have something of an interest in joining with any particular student organization in your college.
You need to remind yourself often that the aim of your sharing is to know what other people think about joining any university student association. Therefore, you had better prepare yourself in reading or receiving both encouraging and discouraging comments. Still, you need to best prepare for receiving comments that show no interest at all. This is only natural in such forum hence you could continue paying more attention to comments that of your own topical interest.
Carefully read the postings from those members to enable you in making a good evaluation about joining any university student association. Of course, you can ask any member to clarify their comments to get better perception on what they have in mind when saying so. In this particular method, you can conduct, at least, more balanced evaluation in helping yourself deciding the usefulness of joining any of those student organizations at your own campus, so that when you finally reach your decision, you know you can hold up to that decision much stronger.